1. O Magnum Mysterium from Choral Pieces, Op. 64
| Section of | 6 Choral Pieces, Op. 64 (Peters, Rob) for mixed chorus or soprano and mixed chorus |
| Title | 1. O Magnum Mysterium |
| Tempo markings | — |
| Metronome markings | — |
| Keys | — |
| Time signatures | — |
| Average duration (sec) | — |
| Number of measures | — |
| Code |  |
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